1.9.7 scripted world values lost on undo

[Kilinich]

Bug introduced in 1.9.x (in 1.8.5 everything fine)
how to reproduce:

type in console

Code: Select all

scene.my.color := {[1,1,1,sim.time % 1]};
app.background.skyColor = {scene.my.color}


run sim
draw box and undo it
sky color change script lost

-- Warning: Failed to evaluate: scene.my.color, Cannot find identifier "color" in "my"
-- Warning: Caught Exception: Not a real, source\script\Attributes.hpp:167: void script::TAttrib<class math::TVector4<double> >::CalcValueFromObject
void)
-- Warning: App.Background.skyColor was bound to bad type. Restoring to last known value.

[Kilinich]

Emil, I know you don't like to fix thyme problems but please... one more time...